Global Patent Index - EP 1825471 A2

EP 1825471 A2 20070829 - SYSTEM AND METHOD FOR LASER WRITE POWER CALIBRATION

Title (en)

SYSTEM AND METHOD FOR LASER WRITE POWER CALIBRATION

Title (de)

SYSTEM UND VERFAHREN ZUR LASERSCHREIBLEISTUNGSKALIBRIERUNG

Title (fr)

SYSTEME ET PROCEDE D'ETALONNAGE DE PUISSANCE D'ECRITURE AU LASER

Publication

EP 1825471 A2 20070829 (EN)

Application

EP 05818094 A 20051026

Priority

  • US 2005038591 W 20051026
  • US 1609904 A 20041217

Abstract (en)

[origin: WO2006065358A2] Systems and methods for calibrating laser write power in a digital media drive are disclosed. The method includes writing to a calibration portion (130) on a digital media labeling layer (110) with energy from a laser (450). The writing includes using at least two different laser power settings within the calibration portion (130). The method also includes measuring a parameter in the calibration portion (130), the parameter being indicative of the reflectivity of the labeling layer (110), and determining a calibrated laser write power setting based on the measured parameter and the at least two different laser write power settings.

IPC 8 full level

G11B 23/40 (2006.01); B41J 2/47 (2006.01); G11B 7/125 (2012.01)

CPC (source: EP US)

B41J 3/4071 (2013.01 - EP US); G11B 7/0037 (2013.01 - EP US); G11B 7/1267 (2013.01 - EP US); G11B 23/40 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB NL

DOCDB simple family (publication)

WO 2006065358 A2 20060622; WO 2006065358 A3 20060810; EP 1825471 A2 20070829; TW 200625291 A 20060716; US 2006133239 A1 20060622; US 7701479 B2 20100420

DOCDB simple family (application)

US 2005038591 W 20051026; EP 05818094 A 20051026; TW 94140433 A 20051117; US 1609904 A 20041217